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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1801) bytebuffers of column data written locally prevent GC of original thrift mutation byte[]
Date Thu, 02 Dec 2010 22:16:14 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966304#action_12966304
] 

Jonathan Ellis commented on CASSANDRA-1801:
-------------------------------------------

We'd like to avoid doing a second copy for BB that we just read (copied) off IncomingTcpConnection.

> bytebuffers of column data written locally prevent GC of original thrift mutation byte[]
> ----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1801
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1801
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7 beta 3
>            Reporter: Matthew F. Dennis
>            Assignee: T Jake Luciani
>             Fix For: 0.7.0
>
>         Attachments: 1801_v1.txt, screenie.png
>
>
> It appears C* isn't releasing buffers that were used during the writes of batch mutates.
 See attached screenshot of heap dump.

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